botD HC:LC binds SV2A or B or C and GD2 on the target cell surface

Stable Identifier
Homo sapiens
Related Species
Clostridium botulinum
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The botulinum toxin type D disulfide-bonded heavy chain - light chain heterodimer ("dichain") (botD HC:LC, encoded by the C. botulinum botD gene) binds ganglioside GD2 and synaptic vesicle proteins 2A (SV2A), 2B (SV2B), or 2C (SV2C) on the plasma membrane of a human target cell. In vivo, this process specifically targets synapses at neuromuscular junctions, where toxin association with ganglioside may position it to bind efficiently to SV2A, SV2B, or SV2C when those proteins are exposed at the cell surface by exocytosis (Kroken et al. 2011; Peng et al. 2011).

Literature References
PubMed ID Title Journal Year
21632541 Novel ganglioside-mediated entry of botulinum neurotoxin serotype D into neurons

Barbieri, JT, Kroken, AR, Kim, JJ, Fu, Z, Karalewitz, AP

J. Biol. Chem. 2011
21483489 Botulinum neurotoxin D uses synaptic vesicle protein SV2 and gangliosides as receptors

Tepp, WH, Dong, M, Peng, L, Johnson, EA

PLoS Pathog. 2011
Name Identifier Synonyms
botulism DOID:11976 Botulism (disorder), Intoxication with Clostridium botulinum toxin, Botulism, Infection due to clostridium botulinum, Botulism, Foodborne botulism, botulism, Botulism, Botulism, Botulism, Food poisoning due to Clostridium botulinum, Botulism poisoning
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